'ebullient' originates from Latin, specifically the word 'ebulliens,' where 'e-' meant 'out' and 'bullire' meant 'to boil.'

'ebulliens' transformed into the French word 'ébullient,' and eventually became the modern English word 'ebullient' through Middle English.

Initially, it meant 'boiling or bubbling,' but over time it evolved into its current meaning of 'cheerful and full of energy.'